Using Resilience4j for Circuit Breaker Pattern in Java
Using Resilience4j for Circuit Breaker Pattern in Java

Using Resilience4j for Circuit Breaker Pattern in Java

Author
Shiv Bade
Tags
resilience4j
java
circuit breaker
Published
July 3, 2018
Featured
Slug
Tweet
Fault-tolerant design isn't optional anymore. As microservices expanded, I experimented with Resilience4j for circuit breaker implementations in Java.
Unlike Netflix’s Hystrix, Resilience4j is modular and lightweight, and integrates well with functional programming constructs.
Example:
CircuitBreaker circuitBreaker = CircuitBreaker.ofDefaults("myService"); Supplier<String> decoratedSupplier = CircuitBreaker .decorateSupplier(circuitBreaker, () -> myRemoteCall()); Try<String> result = Try.ofSupplier(decoratedSupplier) .recover(throwable -> "fallback");
This gave us transparency into service degradation, prevented cascading failures, and allowed safe fallbacks.